參數(shù)資料
型號: AK2546
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 7 channel T1 Transceiver
中文描述: 7頻道T1收發(fā)器
文件頁數(shù): 10/27頁
文件大?。?/td> 123K
代理商: AK2546
ASAHI K ASEI [AK2546]
C0019-E-01 1999/9
10
RECEIVER
Receiver characteristics are guaranteed on the conditions as shown below.
VDD=3.3V±5%, VSS, GND=0V, Ta=-40~85°C,
MCLK frequency: 1.544MHz±100ppm, 24.704MHz±100ppm,
Bipolar input frequency: 1.544MHz±130ppm(reference input level: 3V
0p
±20%)
Parameter
Symbol
Min
Typ
Max
Units
Condition
Sensitivity
-6
dB
Note1
Loss of Signal Threshold
0.35
0.5
0.7
V
Note2
Allowable Consecutive Zero before LOS
170
175
180
bits
S/X tolerance
12
dB
Note3
Generated J itter
30
nspp Note4
Mark
Low pulse density immunity
1/16
J itter Tolerance
GR-499 Category I,II
Note1: Relative value to the reference level. Compare at 772kHz with All Mark Pattern.
Note2: Level at the chip side of transformer. Loss of signal is logical AND between an analog loss of
Signal monitors input level and a digital loss of signal check recovered data stream.
Note3: PN20 and AMI 1/8 Mark pattern input. Noise frequency is 770kHz.
Note4: PN20 pattern input.
JITTER TOLERANCE
0.01
0.1
1
10
100
1
10
100
1000
10000
100000
Jiiter Frequency(Hz)
J
GR-499
Category II
GR-499
Category I
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